Hold the DDR vtt regulator active for functionality.
Signed-off-by: Nishanth Menon <nm@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-am642-evm.dts | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 9cf181d0199f..3d0b473d5252 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -148,6 +148,20 @@ vddb: regulator-4 {
regulator-boot-on;
};
+ vtt_supply: regulator-5 {
+ compatible = "regulator-fixed";
+ regulator-name = "vtt";
+ pinctrl-names = "default";
+ pinctrl-0 = <&ddr_vtt_pins_default>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&main_gpio0 12 GPIO_ACTIVE_HIGH>;
+ vin-supply = <&vsys_3v3>;
+ enable-active-high;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
leds {
compatible = "gpio-leds";
@@ -338,6 +352,12 @@ AM64X_IOPAD(0x025c, PIN_INPUT, 0) /* (D17) MCAN1_RX */
AM64X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (C17) MCAN1_TX */
>;
};
+
+ ddr_vtt_pins_default: ddr-vtt-pins-default {
+ pinctrl-single,pins = <
+ AM64X_IOPAD(0x0030, PIN_OUTPUT_PULLUP, 7) /* (L18) OSPI0_CSN1.GPIO0_12 */
+ >;
+ };
};
&main_uart0 {
--
2.40.0
